TSUN CHEN INDUSTRIAL CORP.(TCIC), established in 1990, specializes in the research, develpment, and manufacture of special washer nuts assembly and screw washers assembly. Over 30 years, TCIC's primary strategies are to satisfy customers' needs, provide the best customized services, and assure the quality of the highest standards. Through being committed to certification under ISO 9001:2008 and understanding the importance of the quality control and the customer satisfaction, TCIC constantly strives to improve in order to achieve the goal of sustainable management.